Iris sibirica '(Siberian Iris) is a clump-forming perennial with tall flowers from late spring to early summer. Each sturdy stem produces about five blooms, above the foliage of sword-like leaves. You can buy one to four established plants with this order, ready to plant in your garden at any time of year. Just dig a little hole, put the root-ball in, cover with soil then firm down and water well.

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